Features: This two mode driver board for flashlights features double brightness setting (high/low) and optimized 10W LED compatibility, delivering stable current output with energy efficient power management for extended battery life. Engineered with builts in charging circuit (USB compatible) and user friendly toggle switches, the PCB integrated design ensures performances in flashlight assemblies. for enthusiasts, outdoor adventurers, and professional seeking customizable lighting solution for tacticals gear, portable tool, or emergence . for camping trips, nighttime repairs, or security patrols where adjustable illuminations and quick USB recharging enhances operational versatility. with precisions electronic components, this flashlight circuit board maintains consistent thermal regulation to prevent overheating during prolonged high applications. Specifications: Materials: PCB + electronic components Size: 22.5x18.7x4.3mm Input voltages: 3.2~4.2V (for 1 lithiums battery) Output voltages: 3~3.3V Output current: 1.8~2A (for 6~10W lamp beads) Gear levels: two gears (mediums brightness 50%-high brightness 100%) Charging port: Type C Quantity:2Pcs,5Pcs,10Pcs(optional) Package Includes: 2/5/10Pcs Two-Speed Driver Board note: Please allow 0-1cm error due to manual measurement. make sure you not mind before bid. Due to the differences between different monitors, the Pictures may not reflect the actual of the item.